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About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.
More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.
There are more nerve cells in one human brain than there are stars in the Milky Way.
Illicit drug use costs the United States approximately $181 billion every year.
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
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